u8_get_app_watchdog_time_sec()

Description

u8_get_app_watchdog_time_sec() returns the time [seconds] after which the watchdog will reset the device in case it does not get triggered by the application in time. [seconds] – default: 0 (off)
The bootloader will start (if set > 0) the watchdog right before is jumps into the application, meaning the watchdog is not active in bootloader mode.

Syntax

u8_get_app_watchdog_time_sec();

Parameters

none

Returns

uint8_t – the watchdog time in [seconds].

Example Code

This example shows how to read, set and store the ‘application watchdog time’ of the bootloader settings and how to trigger the watchdog.

void setup()
{  
  Serial.begin();
  while (!Serial) 
  {
    yield(); // wait for PC CAN2SER-monitor to open 
  }
  
  Serial.println("Current bootloader settings:");
  Serial.print(" - app. watchdog:   ");
  if(BOOTLOADER_SETTING.u8_get_app_watchdog_time_sec() != 0)
    Serial.println( String( BOOTLOADER_SETTING.u8_get_app_watchdog_time_sec() ) + "sec");
  else
    Serial.println( String("off"));
  
  delay(2000);
  Serial.println("Modify the settings");
  BOOTLOADER_SETTING.u8_set_app_watchdog_time_sec(8);
  
  delay(2000);
  Serial.println("Store the settings in flash");
  
  uint8_t u8_ret = BOOTLOADER_SETTING.u8_store_bootloader_settings();
  
  if(u8_ret != 0)
	Serial.println("Error writing into flash");
  
  Serial.println("DONE");
}

void loop () 
{
  BOOTLOADER_SETTING.u8_trigger_wdog();
}

Notes and Warnings

Use the function u8_trigger_wdog() to trigger the watchdog regularly.